From e59986de5ff701494e14c722b78b6e6d513e0ab5 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Fri, 14 Jan 2022 18:50:54 +0100
Subject: [PATCH] can: tcan4x5x: regmap: fix max register value
Git-commit: e59986de5ff701494e14c722b78b6e6d513e0ab5
Patch-mainline: v5.17-rc2
References: git-fixes

The MRAM of the tcan4x5x has a size of 2K and starts at 0x8000. There
are no further registers in the tcan4x5x making 0x87fc the biggest
addressable register.

This patch fixes the max register value of the regmap config from
0x8ffc to 0x87fc.

Fixes: 6e1caaf8ed22 ("can: tcan4x5x: fix max register value")
Link: https://lore.kernel.org/all/20220119064011.2943292-1-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/can/m_can/tcan4x5x-regmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/m_can/tcan4x5x-regmap.c b/drivers/net/can/m_can/tcan4x5x-regmap.c
index ca80dbaf7a3f..26e212b8ca7a 100644
--- a/drivers/net/can/m_can/tcan4x5x-regmap.c
+++ b/drivers/net/can/m_can/tcan4x5x-regmap.c
@@ -12,7 +12,7 @@
 #define TCAN4X5X_SPI_INSTRUCTION_WRITE (0x61 << 24)
 #define TCAN4X5X_SPI_INSTRUCTION_READ (0x41 << 24)
 
-#define TCAN4X5X_MAX_REGISTER 0x8ffc
+#define TCAN4X5X_MAX_REGISTER 0x87fc
 
 static int tcan4x5x_regmap_gather_write(void *context,
 					const void *reg, size_t reg_len,
-- 
2.31.1